Conveyer and cutting mechanism for wrapping machines



Sept; 18,1951 B. REDMOND CONVEYER AND CUTTING MECHANISM FOR\ WRAPPINGMACHINES Filed April 12, 1946 3 Sheets-Sheet 1 a fi 8 m m mm 0. Z M IRn,v. n i M B. REDMOND Sept. 18, 1951 CONVEYER AND CUTTING MECHANISM FORWRAPPING MACHINES Fild April 12, 1946 3 Shets-Sheet 2 i|||||||4 om B.REDMQND CONVEYER AND CUTTING MECHANISM FOR WRAPPING MACHINES Filed April12, 1946 3 Sheets-Sheet 5 IN V EN TOR. Be njamin Re cZmoncZ eflflorne 5H in Patented Sept. 18, 1951 STATES PATENT oFFlcE CONVEYER ANDCUTTING=MECHANISM=FOR WRAPPING MACHINES Benjamin Redmond, New York, N.Y, assignorto Chiplets- Incorporated, NewYcrlt; N. Y., a corporationofNew York Application April 12, 1946;,S erialNo. 661,697

This invention relates o a mechanismuseful infamachine for wrapping-acommodityrproduct of manufacture on other articles. of merchandise, andadvantageously.- useful'for wrapping butter.

The principal object or the invention is the provisionot a mechanismwhich isdcsigned and adaptecito -utilize wrapping material as ameans forconveying the butter in slabsfroma feeding means to a wrapping meansalong apathenabling. printing; and cutting of the slabs into pattiesorchiplet'sby meanssuitably arranged adiacent the; pathtraversed by thewrapping material; andthematerialto be cut by means adjacent said pathinto individual wrappers for theprinted andcutbutter.

With the foregoing; and other objects in view the invention resides inthe. combination, constructionand operation of the partshereinafterdescribed and' illustrated in the accompanying drawings in which-Fig-ilk is a side view of the-mechanism oil the present inventionconstituting a: part of a wrapping; machine";

Fig. is an enlargedfragmentary longitudinal sectional view takenontheline 2-2 of- Fig; 3 showingsparts of the :means for cutting the.wrapping materialr and parts ofi the means for advancing the outmaterial; i p l ig; 3- is a plan view of the: partsshown in Fig. 4 is a:vertical transverse sectional view taken onthe line 4 4 ofi ig.v 2andlookingin the directionindicated by the arrows;

Fig. 5. is a. fragmentary plan view showing parts'iof the cutting means:of Fig. 2-;-

Fig 6 is a fragmentary longitudinal section view taken on the line 5-6of Fig. 7,1showing the stripping. means;

Fig. 61th is" atsect'ional View taken on the line Fig.7 is a plan Viewof: the stripping means in Figs;

means adjacent said path, andcontinues on to suitable wrapping means.Thebutter' printing, cutting and wrapping means are not e1ements:otthep'resent' invention; H e

InFig'; 1" is shown more or less'diagrammatical ly'the features of thepresent invention. Itis to beunderstood' certain parts are supported bya suitable stationary frame of which a part. is designated [0. A roll Hof suitable wrapping material, such as stoutpaper I2, is supported forrotation bysuitable bearings" on the frame, one o'f'sai d' bearingsbeing designated [3. The material I2 is the nature of a belt or band andpasses from the roll ,H downwardly arounda tension roller M, thenupwardlyin contact with the roll ll, then over a guide roller l5, thenunder a feeding roller l6 and between the latter and tension rollers l1,and then is bent around a guide roller l 8 The various rollers aresupported" by suitable fittings and fixtures carried by the; framevlll'. This frame also supports" 'a table l9 having therein a centrallongitudinal slot 2 01 The material l l 'passes from the'roller [8 overthe table l9 substantially horiz'dntally;

In order to advance the *material step-bystep or intermittently inconjunction witli' the feedingof the material by the roller l6, thereisprovided' a plurality of material engaging eleine'nt'sZI carried by achain 22 in equally spaced relation to each other. Thechain 22 encirclesa driving sprocket 23 having intermittent motion, and sprockets 2'4 and25, respectively. The sprockets 23, 2t and 25 are mounted on shafts 26;21 and 28', respectively. The roller 1611s driven by motion transmissionmeans connected with the shaft 21 and the roller It, said means beingshown in diet and dash lines and is designated' 29.

Each of the elements 2| is connected with a link of? the chain 22,asshown' most clearly in Fig. 6d; An element 2| comprisesia cross' baror plate 3Qhaving a reach member. 3l on its underside; The membefri 3]has oppositely'extend' ing'laterallugs sz'which are secured byfasteners' 33' to correspondinglugst l on the particular link of thechain 22. The plate to hasiini paling means thereon consisting ofpointed pins or pe s 35" arranged" iii-rows; there being a front row anda back row,,and the pins 35 in the frcnt row being somewhat longer thanthose in the back row; As the chain 22 moves clockwise, viewed in Fig.1, the elements 2| successively engage the material l2 by impaling itwith the pinsst and advance the material I 2 re eatedly a predetermineddegree; For the sake of con- .tion of the chain 22.

silient presser 36 secured to a cross-bar 31 whose opposite ends arerespectively connected or formed integral with spaced arms 38 of a yoke39. Pivots 40 extend through the arms 38 and fixed lugs 4| on the table,enabling up and down pivotal movement of the yoke 39. The presser 36 isnotched or slotted as at 6 to accommodate the pins 35 as the presser 36moves downwardly. In moving downwardly the presser 36 presses on thematerial l2, thereby forcing the pins 35 through the material. This isaccomplished during a dwell in the movement of the chain 22 which bringseach of the elements 2| in registry with the presser 36. The up anddownpivotal movement of the yoke 39, and therefore the presser 36, iseffected by means of a rocker 42 which has one end thereof connectedwith one of the arms '38 by a pivoted link 43. The rocker 42 is operatedin timed accord with the opera- After each element 2| is impaled, itdraws the uncut material |2 forward -a predetermineddegree accordingtothe desired length. of wrapper wanted. The advancement of the uncutmaterial I2 is the distance between the element 2| at the position A tothe element .2| at the position B in Fig. 1.

of the impaled elements 2| in turn. This makes it possible to use thematerial |2 as a conveyor .of the slabs of butter 44 laid on thematerial l2 one after another. in equally spaced relation as-shown.

In order to cut or sever the material |2 into .separate piecesof therequired length to produce individual wrappers, there is. provided meanscomprising three cutting members 45, 46 and 41, respectively, extendingtransversely with respect to the path of travel of the material 2. Themember. 45 is mounted for cutting movement with respect to the othermembers 46 and 41 to cooperate therewith to cut transversely through thematerial. The member 45 has downwardly diverging cutting edges 48. Themember 45 moves in guides 49 rising from the table |9 and is hingedlyconnected, as at 50, with the cross-bar 5| of the yoke 39. Springs 52are interposed between the cutting member 45 and the cross-bar 5| toyieldingly hold the member45 against the guides 49 in a cuttingposition. The cutting member 45 thus connected and arranged moves up anddown with the yoke 39 so that while the pins 35 are being impaled, thematerial I2 is being out. It is therefore understood that two of theelements 2| are engaged with the material l2 at the time it is beingcut. The cutting member 46 is fixed to the table on the underside at anopening in the table which clears the cutting member 45. The cuttingmember 41 is supported by a block 53 secured to table on the underside.The member 41 is arranged in alinement with the companion member 46 andis slidable laterally with respect tothe path of travel of the reachmembers 3| in the slot 20. Each of the members 46 and 41 consists of abar providing a straight edge which coacts with one of the edges 48 ofthe cutting member 45. The member 41 is slid inwardly to a cuttingposition and is slid outwardly to an out of the way position so as toclear the members 3|. A suitable cam 54 carried by the yoke 3|cooperates with spaced pins 55 on the outerend of the cutting member 41.When the material I2 is being cut the member 41 is in its cuttingposition with respect to the member 46 so that both of these member willcooperate with the cutting member 45. In Fig. 2 the yoke 39 is showndepressed, thereby causing the cutting member 45 to produce a shearingaction in conjunction with the members 46 and 41 cutting the material |2to sever a piece and at the same time causing the presser 36 to forcethe leading end of the uncut material to be forced down against thecross-bar 30 impaled by the pins 35 thereon. As the yoke is returned toits up position as shown in Fig. 1, the cam 54 acts on the outermost pin55 causing the cutting member 41 to move outwardly to clear the slot 20for the passage of the reach member 3| of the particular impalingelement 2| in its forward movement with the chain 22. The next precedingelement 2| advances the out piece or wrapper with a slab of butter 44.Each element 2| advances its wrapper and slab 44 to a transfer pointfrom which the wrapper and its slab 44 is carried through the wrappingmeans of the ma chine. On the way to the transfer point each slab 44 isprinted and subsequently cut into patties or chiplets.

At the aforesaid transfer point each wrapper is stripped from theimpaling means 35. This is accomplished by a stripper 56 hingedlyconnected, as at 51, with a cross-bar 58 fixedly secured to the tableI9. A coil spring 59 surrounding the hinge pintle has one end bearing onthe stripper 56 at the top, and the opposite end bearing on thecross-bar 58 at the underside thereof, as shown in Fig. 7. The spring 59yieldingly holds the stripper in a down position as shown in Fig. 6. Thestripper consists of a plate of spring metal notched, as at 60, toprovide a transverse row of spring fingers 6|. Each notch 60accommodates a pair of the pins 35 while the fingers 6| engage theleading edge of each wrapper presented thereto. A row of bevels on theplate or bar 30 constitute cam means 62 which cooperate with the fingers6|, respectively, to lift or disengage the wrapper from the pins 35 onsaid bar 36, as shown in Fig. 8. Thus, the wrapper is free of thetranslating element 2| so that the wrapper and its slab 44 may beshifted laterally for the wrapping operation. If desired, one or all ofthe fingers 6| may have a protuberance 63 to facilitate the wrapperstripping action.

In lieu of the means described above for disengaging or stripping eachwrapper from the means 35 at said transfer point, use is made of astripper 65 on each of the material engaging elements 2 I, and anobstacle 66 arranged to co operate with said stripper 65 at the transferpoint. The stripper 65 consists of a metal plate having a lateralprojection 61 and rows of holes 68 to receive the two rows of pins 35respectively, projecting upwardly through the plate. The stripper 65 isloosely connected with shouldered studs 69 on the cross bar 30 of theelement 2|, so that the stripper 65 may be actuated to pivot upwardly tofree or strip the wrapper from the pins 35. The obstacle 66 consists ofa leaf spring. It is disposed at an angle with its lower end secured"serveas a:

teena e as at to a fixedpart' ll on the frame so that the projection:iilwill encounter the-upper end of jfilrom thef oregoing'itwill beunderstood there ;is..;des cribe;d a mechanism which supports suitab ematerial l2'for'guided movement with a Fort n disposed horizontally. Thematerial is" out b "intermittently operable cutting means into separatepieces" to produce individual wrappers.

hqrm tallydisposedpor ion of thefuncut .Ili fl 'ifl,

as well "as the roduced wrappers, means*fornonveying"or'translatingtheslabs of butter 44. This enables the use of a single means, namely, thechain 22 and the elements 2 I, for advancing the uncut wrapping materialas well as the wrappers laden with the products to be wrapped.

I claim:

1. In a mechanism of the character described, means to support suitablematerial for guided movement with a portion thereof disposedhorizontally and to be cut into individual wrappers, the uncuthorizontally disposed portion to receive at intervals articles to bewrapped, a plurality of spaced driven material engaging elements tosuccessively advance the uncut material step-bystep, each of saidelements also serving to advance a wrapper with which it is engagedafter a material cutting operation, means to sever the material inadvance of each of said elements after a dwell in its movement, andmeans to free the wrapper from each of said elements as the latter isadvanced into a predetermined position.

2. In a mechanism of the character described, a cutter comprising acutting member having cutting movement, a fixed cutting member, and alaterally movable cutting member arranged in alinement with the fixedcutting member, said first cutting member having cutting movement withrespect to the second and third cutting members, means to operate thefirst cutting member, and means to cause the periodic lateral movementof the third cutting member into and out of a cutting position in timedaccord with the operation of the first cutting member.

3. In a mechanism as set forth in claim 2, and in combination, aplurality of spaced driven material engaging elements to advancesuitable material to be cut by said cutter, each of said elements inturn enabled to pass the cutter during the time the third cutting memberis out of its cutting position.

4. In a mechanism of the character described, an endless driving memberhaving intermittent movement, impaling elements on said driving memberin equally spaced relation with respect to each other for the purpone ofadvancing wrapping material intermittently, cutting means for cuttingthe wrapping material, a presser for pressing the wrapping material intoengagement with said impaling elements in order one after another, andmeans to operate the cutting means and said presser in timed accord withthe operation of said driving member.

5. In a mechanism of the character described, a material engagingelement movable in a predetermined path to engage and convey thematerial, said element having material impaling means, an aperturedpivotally mounted plate carried by said element through which saidimsauna means project "w en t e plateis me add which' plate may beactuated in" response to the s mentor sai dementtb-diSene-agethematerial from the elementa't a predetermined point along said path;and means to actuate said plate for thepufpose stated. V

; fik' ln a-mechanism qf the character described, afplurality;of'spacedelements movable in apredetermined path, each of; said elements havingmaterial impaling meansconsisting of' pins'to engage-material and conveyit along said path, a stripper carried by each of 'saidelements adaptedto' be actuated'inresponse to the movement of; the element to neethmaterial from the impaling means at a' pre elt-iterr'nined point alongsaid path, and-a resil'ient obstacle to actuate said stripper wherl' thelatter encounters the obstacle for the aforesaid purpose;

7. In a mechanism of the character described, means to support suitablematerial for guided movement to be cut into individual wrappers, a.plurality of spaced driven material engaging elements to successivelyadvance the uncut material step-by-step and each of said elements alsoserving to advance a wrapper with which it is engaged after a materialcutting operation, means to impart intermittent movement to saidelements for the purposes stated, each of said elements having means forimpaling the material, means to sever the material at intervals toproduce the individual wrappers, and means for stripping each wrapperfrom the impaling means engaged therewith as the related element isadvanced into a predetermined position.

8. In a mechanism of the character described, means to support suitablematerial for guided movement to be cut into individual wrappers, a

plurality of spaced driven material engaging elements to successivelyadvance the uncut material step-by-step and each of said elements alsoserving to advance a wrapper with which it'is engaged after a materialcutting operation, means to impart intermittent movement to saidelements for the purposes stated, each of said elements having means forimpaling the material, means to sever the material at intervals toproduce the individual wrappers, and means which cooperates with each ofsaid elements to press the material in engagement with the impalingmeans of'each of said elements as the element reaches a predeterminedposition.

9. In a mechanism of the character described, the combination of aplurality of spaced driven material engaging elements to advance endlesssheet material to be cut in suitable lengths, a cutter operable to cutthe material, as aforesaid, said cutter comprising cooperative cuttingmembers one of which is movable up and down and the other one movablelaterally between a cutting position in the path of said materialengaging elements and anon-cutting position out of the path of saidelements, and means causing the movement of the cutting members insuccession.

10. Ina mechanism as set forth in claim 9, wherein said last meansincludes a lever on which the cutting member having the up and downmovement is hingedly mounted.

11. In a mechanism as set forth in claim 10, and a cam carried by thelever cooperating with the laterally movable cutting member.

12. In a mechanism of the character described, the combination of atable having a longitudinal slot therein, an endless driving elementhaving intermittent movement below said table, a plurality of materialengaging elements arranged on the comprising a cross-bar, means on theunderside of the cross-bar connecting the cross-bar with said drivingelement so that said means may travel 5 in the slot while the cross-bartravels above the table, means on the cross-bar to engage an endlessband of material to advance the material so that it may be cut intoseparate pieces and to advance one of the pieces. 13. In a mechanism asset forth in claim 12, and cutting means operating in timed accord withthe intermittent movement of the material to cut the material to producethe separate pieces.

14. In a mechanism as set forth in claim 12, wherein said means on thecross-bar for engaging the material consists of impaling pins.

BENJAMIN REDMOND.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date Re. 22,945 Engberg Dec. 2, 1947102,568 Maywell May 3. 1870 380,065 Waite Mar. 27, 1888 1,069,396Cumnock Aug. 5, 1913 1,091,568 Garfield et a1 Mar. 31, 1914 1,428,420 DeMattia Sept. 5, 1922 2,235,960 Curtis Mar. 25, 1941 2,258,880 Bobst Oct.14, 1941 v2,296,142 Campbell Sept. 14, 1942 2,329,256 Edelman Sept. 14,1943 Krueger June 22, 1948

